Insertion tool



FIG. 1 is a perspective view of an insertion tool in accordance with my new design;

FIG. 2 is a left side elevational view of the insertion tool of FIG. 1;

FIG. 3 is a front elevational view of the insertion tool of FIG. 1; and,

FIG. 4 is a rear elevational view of the insertion tool of FIG. 1.

The broken lines showing portions of grip and recesses which are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

I claim the ornamental design for an insertion tool, as shown and described. 